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Inventories
3 Months Ended
Mar. 31, 2022
Inventory Disclosure [Abstract]  
Inventories
(4) Inventories

Inventories consisted of the following:
(in millions)March 31, 2022December 31, 2021
Finished goods$256 $215 
Raw materials295 177 
In-process inventories51 20 
Parts, supplies and other81 72 
Total inventories$683 $484